Wavelets Applied to the Detection of Point Sources of UHECRs
Abstract
In this work we analyze the effect of smoothing maps containing arrival directions of cosmic rays with a gaussian kernel and kernels of the mexican hat wavelets of orders 1, 2 and 3. The analysis is performed by calculating the amplification of the signal-to-noise ratio for several anisotropy patterns (noise) and different number of events coming from a simulated source (signal) for an ideal detector capable of observing the full sky with equal probability. We extend this analysis for a virtual detector located within the array of detectors of the Pierre Auger Observatory, considering an acceptance law.
Keywords
Cite
@article{arxiv.1012.3645,
title = {Wavelets Applied to the Detection of Point Sources of UHECRs},
author = {Rafael A. Batista and Ernesto Kemp and Rogerio M. de Almeida and Bruno Daniel},
journal= {arXiv preprint arXiv:1012.3645},
year = {2012}
}
Comments
9 pages, 8 figures. Proceedings of the Young Researchers Meeting, 2010. Available in: http://www.ifi.unicamp.br/physicae/ojs-2.1.1/index.php/physicae/article/view/191; Physicae, Proceedings of the Young Researchers Meeting, Vol 1, 2011